<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="lib/react.development.js"></script>
    <script src="lib/react-dom.development.js"></script>
    <script src='lib/babel.min.js'></script>
</head>
<body>
<div id="root"></div>
</body>
<script type="text/babel">
    const root = ReactDOM.createRoot(document.querySelector('#root'));
    root.render((
        <button onClick={(e)=>{
            console.log(111,e)
        }}>点我</button>
    ))
</script>
</html>